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Recursively get a list of files from a directory using async / await
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| const fs = require('fs'); | |
| const path = "/your/data/path"; | |
| (async () => { | |
| async function recurseDir(aDir, aArr, aCond) { | |
| //remove trailing slash if it's there | |
| aDir = aDir.replace("\/+$", ""); | |
| let dirents = await fs.promises.readdir(aDir, { withFileTypes: true }); | |
| for (const aDirent of dirents) { | |
| if (aDirent.isDirectory()) { | |
| await recurseDir(aDir + "/" + aDirent.name, aArr, aCond); | |
| } else { | |
| //optionally check for an extension | |
| if (aDirent.name.endsWith(aCond)) { | |
| aArr.push(aDir + "/" + aDirent.name); | |
| } | |
| } | |
| } | |
| return aArr; | |
| }; | |
| let files = await recurseDir(path, [], ""); | |
| console.log(files.length); | |
| //write list of files to a file | |
| let outputFile = fs.createWriteStream('files.txt'); | |
| outputFile.on('error', function (aErr) { | |
| console.log("Couldn't create file") | |
| }); | |
| for (const aFile of files) { | |
| outputFile.write(aFile + '\n'); | |
| } | |
| outputFile.end(); | |
| })() |
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